1. Physics Department, University of Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy
2. Department of Physics and Geology, University of Perugia, via Alessandro Pascoli, 06123 Perugia, Italy
3. Istituto per i Processi Chimico-Fisici del CNR, via G. Moruzzi 1, 56124 Pisa, Italy
4. Université Grenoble Alpes, CNRS, LiPhy, 38400 St Martin d’Heres, France
5. Institut Laue Langevin, 38000 Grenoble, France
6. Institut Universitaire de France, 75005 Paris, France
7. CNR-IOM and INSIDE@ILL c/o OGG, 71 avenue des Martyrs, CEDEX 9, 38042 Grenoble, France
8. CNR-IOM, Department of Physics and Geology, University of Perugia, via Alessandro Pascoli, 06123 Perugia, Italy
9. CISUP, Centro per l’Integrazione della Strumentazione dell’Università di Pisa, Lungarno Pacinotti 43, Pisa 56126, Italy